Improper Cryptographic Signature Verification in Edito CMS by Edito
CVE-2026-59074

8.7HIGH

Key Information:

Vendor

Edito

Status
Vendor
CVE Published:
13 November 2026

What is CVE-2026-59074?

Edito CMS is affected by a vulnerability that allows authenticated low-privilege users to bypass cryptographic signature verification in the JWT refresh logic. By submitting a maliciously crafted JWT containing an existing user identifier, an attacker can successfully acquire a valid, fully-signed session token for any user account, including those of administrators. This critical security flaw emphasizes the need for robust signature validation mechanisms to prevent unauthorized access and user impersonation.

Affected Version(s)

Edito CMS 0 < 5.10.2607

References

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Michał Majchrowicz (AFINE Team)
Dawid Małecki (AFINE Team)
​Paweł Zdunek (AFINE Team)
.